Reinforced concrete floor construction.



w. GABRIEL. I REINFORCED CONCRETE FLOOR CONSTRUCTION. I APYLIOLTION FILED 8mm 13, 1907. RENEWED 11017.5, 190's.

Patented Jan. 5, 1909 INVENT Q; WILLIAM GABRIEL.

WITNYIESSES 1 AT TOR EYS.

t Concrete WILLIAM (.lABRIEL, OF DETROIT, MICHIGAN,

REINFORCED CONCRETE FLOOR CONSTRUCTION.

To all whom it'ma'y concern:

Be 1t known that I, WIL JAM GABRIEL, a

citizen of the United States of America, re-

siding at Detroit, in the county of Wayne and State ofltlichigan, have invented certain new and useful Improvements in Reinforced Floor Construction, of which the following ,is/a specification, reference being had therein" to the accompanying drawings.

In composite or reinforced concrete floor construction, parallel floor beams of the usual constructional form spaced at regular intervals, are concrete is moldet specification of Letters Patent. ApplieatiOn filed September 13, 1907, Serial No. 392,641.

metal tension members embedded therein,

Whose ends are supported by the beams.

standing, compression, and cannot resist. the

tension strains which develop in.uniformly loaded beams su ported at either end, the mass of concrete ying directly between and belowithe tension members is a dead weight which does not in any way increase the strength of the floor, embed or cover present a smooth under surface for a ceiling.

This invention relates to a reinforced concrete floorconstruction wherein the dead weight mass of concrete above referred to is replaced b hollow tiles interlocking with the concrete and the tension members, thereby greatly decreasing the weight of the floor. The. invention consists in the matters hcreimrfter set forth, and more particularly poin ted out in the ap )ended claims.

Referring to the drawings, Figure l is a view in cross-section between the supporting beams, of a reinforced concrete floor con In as rnu' ch as the concrete is only capable of but merely serves to j the tension members and to struction which embodies the features of the invention. 4 Fig. 2 1s a view in perspccth'e of one lorm of tile which may be used.

in the tll:l\\'ll1f:-f, i represents a plurality of spaced metal tension members arranged in parallel relation and supported at each end nrtbc regular lloor beams. 'lbesn tension members are provided at regular intervals with metal shear members i, which consist of picccs of metal wire or vidcd with central rings or stirrups 3 adapted to encircle or closely grip the tension members at regular intervals. the lillllll'lttllnlt pol'tions presenting obliquely disposed upwardly ..\'i(H1llu Lf 'arms 4, low the surface of the floor.

Tiles 5 are set between each pair of tensi n may rod prowbich end just bw tmiscqucutl -x between the lrunrguhn' beams is fill nuunbcrs, cat-h comprising a hollow body of-I I floor is obt Patented Jan. '5, 1909. Renewed November 5, 1908. Serial No. 4611.185.

general triangular cross-section, whose lower face 6 resents a horizontal surface to which the cei in coat inav be a med. The cona t l are truncated 7 which abut beotherwise securml to the upper divergent arms of the tension menibers. To further stiffen the tile, cross walls 12 of any prefe red design may be used. I

In the form of tile hereinln-fore illustrated, the. walls are practically cont mun tions of the outer shoulders in the side faces of tb; tilesv and extend to the median line of the/lower face so that a triangular cellular dcsignis obtained of great rigidity-and lightness. The space between and above the tiling to the line of the floor is filled with a concrete mass 13, which completely cnvclops the tension and shear members. lihconstructilri he floor, false supports-arc placed in posit ion bet-ween the floor bomns. against their nndcrside; the tiles are the. laid in courses bciw can the beams in regular order with their rerl ical faces in abutment; the tens on members arrt-hensccnred in placeabovetheabuttingjoints of the tile with the shear members dist ributcd in lace.

f desired, the shear members may be. anchored against displacement by twisting the projecting ends of the wires ll embedded in the tile. around them or they may be. left free. The concrete is then lumped in place, between the tiles and around the metal membcrs. closely filling, the space between the sides and covering the tile crowns. the surface being finished in the usual manner for a floor. By. this method of L'ODSl'l'Ut'llOll, a

shred which is in effect a series of reinforced beams of triangular cross-section whose compression strains are taken u by the concrete at its greatest 'cross-sectional area: whose. tcnsion trains are provided for or longitudirml mcta 'i members designed especially f floor load, and which are pro vided with shear members which extend transversely acros the line of shoar and are more. efficient. The space cd by the hollow tile whose projecting shoulders interhers. The oblique I each length l with pr ject fiug ends which may be. bent. up or around used between which a body of f in place, with transverse l of loads an the spirit of the invention and 35 anup erbodyofccment,

em ded therein near t e under side, shear lock with the sides of the triangular mass of concreteso that they remain in position as in an archwbile the debdweight of the mass of concrete between the tension members, customary in the usual reinforced floor construction, 1s replaced by air spaces, the tiling being of sufiicient strength to carry any ceilng which may be applied to its under surace. It is obvious that the metal tension an shear members may be readily distributedso as to be ada ted for any local concentration the tiles may be designed so that they will accommodate themselves to desired spacing of these members.

lhe' design and construction of the members may be varied without de arting from do not care to limit myself to any particular form and arrangement of parts.

I claim as my invention 1. A composite concrete floor comprising larl disposed cylindrical tension rods apte to be supported at each end, shear members consisting of wire bent into loops encircling the rods anddivergent arms between the loops extending obliquely upward, hollow tiles between and below the tension "members presenting a continuous ceiling surace, concrete surrounding the rods and wires and interlocking with the tiles and metal fasteners embedded in the tiles, andsecured to said shear members.

' 2..-'A concrete, composite floor comprising rallel tension rods ceases members consisting of wire formed into loops engaging the rods at re ular intervals and extended upwardly in ivergent arms between the 100 s, and courses of triangular cellular tiles, t e edges of said tiles abutting below the tension rods, the sloping sides of said tiles extending up between the tension bars and provided with undercut shouldersfloor surface, and t as, each comprising a i triangularfcellular section with arched top, having shoulders alon its obli ue sides perpendicular thereto, the lateral margins of said tiles abutting beneath the rods, and the tops of said tiles extending into the concrete between the rods and interlocking therewith along said shoulders, and flexible wires embedded in the sides of the tiling, projecting 65 therefrom and secured to said shear members. In testimony whereof I afiix my signature in presence of two witnesses.

WILLIAM GABRIEL. Witnesses:

Gaa'ravnn GABRIEL, O'r'ro F. Baa'rrmr. 

